Gain weight, build muscle, and track your progress with a comprehensive app designed to help you reach your fitness goals. Start your journey to a healthier you today.
The Weight Gain App by Strongr Fastr LLC
Gain Weight, Muscle & Curves





112+ iOS apps curated and reviewed
The best mass gainer apps on iPhone average 4.4★ across 112+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.






Gain weight, build muscle, and track your progress with a comprehensive app designed to help you reach your fitness goals. Start your journey to a healthier you today.






Track your weight loss or gain journey with our app. Set goals, monitor progress, and stay motivated on your path to a healthier you. Download now and start your journey today!







Unlock your potential with our comprehensive weight gain program - gain healthy mass, boost confidence, and become the best version of yourself! Join us today for a transformative journey towards a stronger, healthier you!


This intense 4-week program focuses on heavy compound exercises to maximize muscle mass and strength gains. Start your journey to a bigger, stronger physique and enhanced confidence today.


Discover a comprehensive wellness app with over 50 diet programs, workouts, and meditation for achieving your dream weight and a healthier lifestyle. Join a supportive community, track your progress, access expert guidance, and explore a variety of healthy recipes to meet your wellness goals. Download now to start your journey towards a healthier you!




Track your fitness journey with detailed progress tracking for body measurements, weight, and fitness goals. Stay motivated and achieve your fitness milestones with personalized insights and goal tracking. Download now to start your transformation journey!


This workout tracker and log app helps users lift smarter and see real progress by building routines, tracking sets, and visualizing progress with muscle maps and charts. With features like lightning-fast logging, AI-powered insights, and seamless syncing, users can plan, track, and analyze their workouts like a pro and start achieving their fitness goals today.


Optimize your fitness routine with a personalized workout plan tailored to your goals and fitness level. Get started on your journey to a healthier lifestyle today!




Train smarter with our cutting-edge Gym Workout app that offers personalized training routines, exercise tracking, progress monitoring, and expert guidance. Elevate your fitness journey today!


"Get in shape with our all-in-one fitness app catered specifically for women. From gym workouts to Pilates sessions and meal plans, Sculpt You helps you achieve your fitness goals conveniently. Download now and start your transformation journey today!"


This application provides a 30-day plan to help users gain weight in a healthy and balanced way, with a detailed meal planner, diet tips, and exercise routines. It offers a user-friendly interface, daily meal reminders, and a comprehensive diet plan with a shopping list to help users achieve their weight gain goals.


Access an all-in-one social media management tool that helps you schedule posts, track analytics, and engage with your audience seamlessly across multiple platforms. Increase your online presence and reach your social media goals effortlessly. Sign up now and elevate your social media game!


Track your Instagram followers, unfollowers, and engagement with ease using this powerful and fast followers tracker. Find out who's not following you back, analyze your post performance, and more. Boost your Instagram game now!




This meal planner app helps bodybuilders gain weight and muscle mass with personalized nutrition plans, a macro calculator, and a food tracker. Download now and start your free trial to achieve your bulking goals with a tailored diet plan and track your progress effortlessly.


Maximize your Instagram account with real-time analytics and actionable insights. Track metrics, monitor interactions, identify followers, and refine your content strategy for optimal growth. Download now for a powerful Instagram analytics tool.

